Roulette. I hope everyone understands this guy (and all the rest of these) just won a round of roulette.
Obviously it takes some significant level of skill and knowledge to even get into the ballpark of the target at that distance, but the target is probably 1/3 to 1/4 the height of elevation spread just from MV, being generous. Never mind wind, aerodynamic jump, drag variability, etc...
It's the same thing as 1000yd bench rest world record groups. Impressive, sure... in the same way winning the lottery is. Throw enough groups at paper at 1000yd with tuned out systems, and eventually you're going to throw some .1 MOA 5 shotters and .25-.35 MOA 10 shotters down range.
Anyway, I still maintain some poor schmuck has probably been hit by a deck gun or rail gun directly at 20-25 miles so what's 3000-6000yd?